One of the younger sons of the earl of Portland, like his sisters Thomas Weston appears to have been raised a Catholic by their mother’s auspices and he was noted later in life as being ‘a religious man’.
The death of his nephew Charles Weston* , 3rd earl of Portland, at the battle of Lowestoft brought the peerage to Weston in the summer of 1665, but he appears to have been reluctant to shoulder the responsibility. Noted as missing at a call on 1 Oct. 1666, he left it to the following year before finally taking his seat in the House. Present for the first time on 10 Oct. 1667, the following day he was named to the committees for privileges and petitions. He was named to a further five committees in the course of the session, of which he attended 62 per cent of all sitting days. Never a very active member of the House, Portland sat for the last time on 1 Mar. 1669. Two months later, he suffered the loss of his countess, who appears to have been in poor health from the outset of their marriage.
Portland had sold his paternal inheritance, the estate at Skreens, prior to the Civil War and, according to his Wadham contemporary Sir John Bramston‡, ‘having little to support his title’, after the death of his countess he opted once more for life abroad.
Portland continued to feature in occasional forecasts, being noted as a Catholic in lists of those peers thought likely to support repeal of the Test in January and November 1687 and again in January 1688. He died later that year without leaving a will. He was described in the convent’s chronicle as having been ‘a singular benefactor and dear friend to this monastery’.
